Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Obesity linked to higher 5-year death rate after esophageal cancer surgery

21.12.2011
Obesity doubles the risk of cancer recurrence and cancer-related death in patients with esophageal cancer who have been treated with surgery, researchers at Mayo Clinic found.

Their 778-patient study, which appeared in the Dec. 1 issue of the Journal of Clinical Oncology (http://jco.ascopubs.org/), found that five-year survival in obese patients -- those with a body mass index of 30 or higher -- with esophageal cancer was 18 percent, compared to 36 percent in patients of normal weight.

VIDEO ALERT: Additional audio and video resources are available at the Mayo Clinic News Blog (http://newsblog.mayoclinic.org/2011/12/20/obesity-lowers-survival-chances-after-esophageal-cancer-surgery/).

The research is the first to find that obese patients with esophageal cancer have worse outcomes following surgery than patients with a normal weight, says lead investigator, Harry Yoon, M.D. (http://www.mayoclinic.org/bio/15120945.html), an oncologist at the Mayo Clinic Comprehensive Cancer Center (http://mayoresearch.mayo.edu/mayo/research/cancercenter/).

"Obesity is considered a risk factor in the development of this cancer, which is known to be both highly lethal and increasingly common," he says. "But prior to this study, we did not really understand the impact of obesity in this upper gastrointestinal cancer."

If validated in another study, the findings may change the way some physicians counsel obese patients with this disease Dr. Yoon says.

"As an oncologist, I did not typically speak to my patients about excess body weight as part of their care, because we are more often concerned about weight loss and maintaining proper nutrition, but that may change. It would be helpful to be able to offer patients some measures that they can take to possibly impact their prognosis," he says.

The study's findings applied to patients who had never smoked. Links between obesity and outcomes in smokers are more difficult to determine, because smoking is known to reduce weight and increase the likelihood of death. All the patients studied were treated at Mayo Clinic, and had undergone esophagectomy (removal of the esophagus), which is potentially curative.

Dr. Yoon says studies that have linked obesity with poor outcomes in other tumor types have proposed that excess weight produces a chronic inflammatory state, which can raise the risk of cancer development and worse outcomes.

The study was funded by the National Cancer Institute and the National Center for Research Resources.

About Mayo Clinic

Mayo Clinic is a nonprofit worldwide leader in medical care, research, and education for people from all walks of life. For more information, visit http://www.mayoclinic.org/about/ and http://www.mayoclinic.org/news

Joe Dangor | EurekAlert!
Further information:
http://www.mayo.edu

More articles from Studies and Analyses:

nachricht Europe’s Demographic Future. Where the Regions Are Heading after a Decade of Crises
10.08.2017 | Berlin-Institut für Bevölkerung und Entwicklung

nachricht Scientists reveal source of human heartbeat in 3-D
07.08.2017 | University of Manchester

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

A Map of the Cell’s Power Station

18.08.2017 | Life Sciences

Engineering team images tiny quasicrystals as they form

18.08.2017 | Physics and Astronomy

Researchers printed graphene-like materials with inkjet

18.08.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>